TEA1506AP 데이터 시트보기 (PDF) - Philips Electronics

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TEA1506AP

GreenChip™II SMPS control IC

Philips Electronics 

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VCC 1

(2)

2

GND

(3)

SUPPLY

MANAGEMENT

internal UVLO start

supply

VOLTAGE

CONTROLLED

OSCILLATOR

FREQUENCY

CONTROL

LOGIC

UP/DOWN

COUNTER

VALLEY

Iprot(DEM)

clamp

100

mV

OVER-

VOLTAGE

PROTECTION

8

DRAIN

(14)

4 DEM

(7)

3

CTRL

(6)

Iprot(CTRL)

−1

3.8 V

TEA1506P;

TEA1506AP

(TEA1506T;

TEA1506 AT)

POWER-ON

RESET

OVER-

TEMPERATURE

PROTECTION

LOGIC

SQ

UVLO R Q

SQ

VCC < 4.5 V

or UVLO

(TEA1506AT)

RQ

MAXIMUM

ON-TIME

PROTECTION

Pin numbers in parenthesis represent the SO version.

Fig.2 Block diagram.

DRIVER

LEB

blank

OCP

6 DRIVER

(11)

Iss

soft

0.5 V

start

S2

5

Isense

(9)

short

winding

0.88 V

OVERPOWER

PROTECTION

MDB505

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